Create a Gitlab CI procedure

.gitlab-ci.yml

@@ -0,0 +1,40 @@
+stages:
+  - build
+  - publish
+  - deploy
+
+build-job:
+  stage: build
+  image: docker:stable
+  tags:
+    - docker
+  script:
+    - docker login --username="$REGISTRY_USER" --password="REGISTRY_PASSWORD" "$REGISTRY_BASE_URL"
+    - docker -H unix:///var/run/docker.sock image build -t "$REGISTRY_BASE_URL/$DOCKER_IMAGE_NAME:$CI_COMMIT_SHORT_SHA" ./
+  artifacts:
+    - paths:
+        - ~/.docker/
+
+publish-job:
+  stage: publish
+  image: docker:stable
+  tags:
+    - docker
+  script:
+    - docker -H unix:///var/run/docker.sock image push "$REGISTRY_BASE_URL/$DOCKER_IMAGE_NAME:$CI_COMMIT_SHORT_SHA"
+
+deploy-job:
+  stage: deploy
+  when: manual
+  image: google/cloud-sdk
+  script:
+    - export KUBECONFIG="$KUBE_AUTH"
+    - cp "$ENV_PRODUCTION" "./build/.env.production"
+    - cp "$MYSQL_ENV" "./build/mysql-secret.env"
+    - cp "~/.docker/config.json" "./build/.dockerconfigjson"
+    - cd "./build"
+    - kubectl apply -k ./
+    - echo "Waiting for deployment..."
+    - sleep 30
+    - WEBSITE_POD=$(kubectl get pod -l "$KUBE_POD_LABELS" -n "$KUBE_NAMESPACE" -o jsonpath="{.items[0].metadata.name}")
+    - kubectl delete -n "$KUBE_NAMESPACE" pod "$WEBSITE_POD"